Roofing tile



7 April 80, 93 w. Lunbwlcl 1,999,244

, ROOFING TILE Filed March 16, 1953 PatenteclApr. 30.1935 j 1,999,244

PATENTLIOFFICE 1,999,244 if i V I V noormo'rrm Wilhelm Ludowici, Jockgrim/Pfalz, Germany Application March. 16, 1933, Serial No. 661.193 I l In Germany April 23, 1932 A i 2 Claims. (CL 108 This invention relates to roofing tiles, and has face of the tile which is substantially flat; wherefor its object to' provide a dovetailed tile by by when (meme is laid uponthe other the angle which a waterproof and light-tight roof: may be turned through when passing from the curved constructed. An interlocking roofing tile accordportion of the upper tile on to the main surface 5 ing to the invention comprises one or more head of the lower tile is also obtuse. The extremity i ribs, an underneath bottom closing rib set back of the lower end may-be constituted by a rib n from the bottom edge of the tile and adapted substantially normal to the plane ,of the plate to engage with a head rib of the next lower tile, This form of construction not only gives the 7 an upwardly directed rib running along or adwhole roof a pleasing and quiet appearance, but 10 'jacent to one side edge of the tile and forming has the further advantage ofgiving the water the boundary wall of ,a main water trough, said a rapid flow off, because the curved surface of the boundary wall having a longitudinal groove in'lower end will quickly drain the water off the its upper surface constituting an auxiliary water surface 1' softhat any. penetration of water below trough, and a pair of underneath side closing the end of the tile is not possible, as-in the case ribs one running along or adjacent to'the side ,of ordinary straight edged tiles.

edge of the tile opposite to thathaving the troughs, Whenthe tiles are laid'together they dovetail and adapted to engage with the main trough of as is shown in Fig. 3 in cross section. The water an'adjacent tile while the other side ribis parconduit consists of a main trough b having a allel to the first and setback from the edge'of boundary wall along the. topedge of, which exthe tile and adapted to engage in the auxiliary tends a groove constituting an auxiliary trough watertrough-of the adjacent tile; l bl, so that thewater flowing off the tile through The invention will now be more clearly undertrough b cannot penetrate intothe building over stood with reference to theaccompariying drawthe left edge of the tile in Figs. 1 and 3. This ing which illustrates by way of example two closure wall extends upwardly to the under surforms of the invention. face of the overlapping side portion of the ad- In the drawing wherein like references denote jacent tile. At the right hand edge of the tile like or similar parts: as seen in Figs. 1 and 3 is provided a pair of Fig. l is a top plan view; underneath closing ribs c and a, of which the Fig. 2 is a plan View of Fig. 1 when turned rib 0 runs along or adjacent to the side edge of 30 about its right hand longitudinal edge and shows the tile opposite to that having the troughs, and 30 the underneath of the tile; is adapted to engage with the main trough b of Fig. 3 is a section along the line 3-3 of Fig. 1 an adjacent tile, while the other rib a is parallel and showing the tile interlocking with adjacent to the rib c and set back from the edge of the tiles as when in position on the roof; tile and adapted to engage in the auxiliary water Fig. 3A is a view to an enlarged scale of part trough bl of the adjacent tile. The adjacent of Fig. 3 showing the interlocking of the side tile is so constructed that the closing rib 11 forms ribs. a line closure therewith, further the inner por- Fig. 4 is a cross section along the line 4-4 tion cl of the boundary wall of the trough b of Fig. 2; is lower than the outer portion, the whole con- 40 Fig. 5 is an enlarged partial cross section along stituting a construction which shuts out light or 40 the line 5-5 of Fig. l; soot and the like. The shape of the rib 0 per- Fig. 6 is a top plan view of a roofing tile acmits the water to flow freely.

cording to the invention with an alternative form The dovetailing at the top end of the tile conof rib, and sists of a main rib e and a rib 1, both on the upper 49 Fig. '7 is a plan 'view of Fig. 6 when turned surface of the tile. On the under surface ofthe about its right hand longitudinal edge and shows tile at the lower end is a closing rib g which is set the underneath of the tile. back from the rib n and rests against the rib f The tile according to the invention consists of an adjacent tile when laid, the rib g having of a flat or almost flat plate i, having a bottom notches h in which projections hi and IL2 of the 50 portion and a side portion, (right hand of Fig. 1) adjacent tile engage. Thus when four tiles are both of which portions overlap the tile underlaid together, they will be given the usual stagger neath to a considerable extent. The lower end as is shown in Fig. 3. There are two oblique or bottom portion of the plate i is bent downopenings ii in the closing rib 1 through which wards, as shown in Fig. 4, preferably so that its openings ii the water accumulating at the head surface forms an obtuse angle to the main surof the tile is led on to the flat surface thereof.

UNITED STATE.

In addition to the rib 71.2 there is provided a further rib -'h3, both ribs hi and n3 preventing the water from coming out where adjacent tiles abut.

On the unders de of thetile there is provided a longitudinal waveshaped rib k having a hole 0| for tying purposes, a similar hole 02 being provided in a cross rib 2 at the lower end of the tile. By providing the rib is, warping of the ti1e durmight occur while laying the tiles.

The lateral edges of the lower extremity n of the tile are provided with notches m on the undercan drip off more easily, the extremity n being somewhat thicker at the lateral edges to accommodate the notches. At the top end of the tile on the underside thereof is provided a rib p by which the tiles may be hung from the laths.

As shown in Fig. 5, the bottorn of the-main trough b To this end the upper head-rib e is madsorn what thinnerat el and the closing rib f is simito a greater extent than in the case of the tile trernity or rib n and the rib 9 above it, are carried from the trough.

As a result of the curving of the ribs g and n on the underside of the tile, it is possible to carry correspondingly, the lower e X-g the rib c to the end of the rib 11. In thisway the watertrough is shut off completely to the edge of What I claim is:

1. An interlocking roofing tile having an upwardly directed rib running along or adjacent 'ndent outlet passage for water, and a pair of underneath side closing ribs, one

7, running along or adjacent to the side edge of the 

